Two stacked gratings in a contact lens form moiré fringes that shift with viewing angle, giving a measured 0.28 degree resolution for lens orientation from ordinary photographs.
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physics.optics 1years
2025 1verdicts
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Contact Lens with Moir\'e patterns for High-Precision Eye Tracking
Two stacked gratings in a contact lens form moiré fringes that shift with viewing angle, giving a measured 0.28 degree resolution for lens orientation from ordinary photographs.